期刊论文

中文

湖南农业大学学报(自然科学版)

1007-1032

1996

22

5

461-465

10.13331/j.cnki.jhau.1996.05.010

湖南省教委资助课题；

本校为第一机构

观察分析了湖南洞庭湖区南荻变种“突节荻”的染色体核型, 结果如下: 2n=38=22m+8Sm(4SAT)+2St+6T, x=19; 1,2,3,4,6,7,9,10,11,12,13号染色体为m; 5,8,14,18号染色体为Sm; 15号染色体为St; 16,17,19号染色体为T; 5号和8号两对染色体为随体染色体, 染色体绝对长度平均4.63#mu#m, 相对长度平均5.36%, 最大与最小臂比值分别为8.43和1.00, 平均2.66, 最长与最短染色体的比值为3.00, 臂指数在50%-89.39%之间, 平均64.67%, 其核型属于Stebbin的2B类型。

The authors analyse the chromosomal nuclear type of Triarrhena Lutarioriparia var elevatinodis L. Liu et P.F.chen vor nov.a variety of Triarrhena lutarioriparia L.Liu sp.nov.,and find that 2 n =38=22 m+8 Sm(4SAT)+2 St+6 T, x =19;No.1,2,3,4,6,7,9,10,11,12,13 were m type chromosome;No.5,8,14,18 are Sm;No.15 was St;No.16,17,19 are T;Two couples of 5 and 8 chromosome are SAT chromosomes.The absolute average length of chromosome is 4.63 μm.The relative average length is 5.36%.The largest number of chromosome arm ratio is 8.43,the least ratio 1.00,a...